Type-writing machine.



No. 758,794. PATENTED MAY 3, 1904. B. O. STIUKNEY.

TYPE WRITING MACHINE.

APPLICATION FILED JULY 3. 1897.

no MODEL. v 4 snnms-smm 1.

PATENTED MAY 3, 1904.

B. C. STICKNBY.

TYPE WRITING MACHINE.

APPLICATION FILED JULY 3, 1897-' 4 SHEETS-SHEET 2.

N0 MODEL.

PATENTED MAY 3, 1904.

7 B. G. STIGKNEY. TYPE WRITING MACHINE.

APPLICATION FILED JULY 3. 1897.

4 SHEETSSHEET 8.

N0 MODEL.

Snow/whom mm ind Ugo; c a 68mg 4 sums-sum 4.

PATENTED MAY 3, 1904.

B. G. STICKNBY.

TYPE WRITING MACHINE.

APPLICATION FILED JULY 3, 1897.

N0 MODEL.

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UNITED STATES Patented May 3, 1904.

PATENT OFFICE.

INIESNE ASSIGNMENTS,

TO UNION TYPEW RITER (IOU PANY, OF

JERSEY CITY, NEW JERSEY, A CORPORATION OF NEIV JERSEY.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 758,794, dated. May 3, 1904.

Application filed July 3, 1897. Serial No. 643,455. (No model.)

To It whom it lib/L7] concern:

Be it known that I, BURNIIAM (J. STICKNEY, a citizen of the United States, and a resident of Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Type -\\"'riting Machines, of which the following is a specification.

My invention relates to the paper-feeding and line-spacing mechanism of type-writing machines; and its object is to provide an effective pressure-roller system, means for releasing the pressure-roller grip, paper-guiding apron, &c., and movable front paperguides. Its further object is to provide an improved line-space lever, pawl, and regulator and also effective and simple means for notifying the operator when the foot of the page has been reached.

To these ends my invention consists in the features of construction and combinations of devices hereinafter more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 represents the plan of a paper-carriage, some parts being omitted and others broken away to more clearly exhibit the invention. Fig. 2 is an elevation of the right-hand end of the carriage, shown partly in section. Fig. 3 is a sectional front elevation of one end of the rear bar of the platen-frame, showing a detail. Fig. I is a front elevation of the movable front paper-guide. Fig. 5 is a sectional end elevation of the carriage, taken at about the line X, Fig. I. Fig. 6 is a perspective view of the pressure-roller system and graduated paper-apron or platen-scale. Fig. 7 is a side view, and Fig. 8 is a front view, of the linespace lever and pawl. Fig. 9 shows edge and side views of the adjustable link used in determining the extent of movement of the line-space lever. Fig. 10 is a detail of the adjustable stop used in connection with the movable front paper-guides. showing the manner of adjusting the pressureroller spring. Fig. 12 is an end view, and Fig. 13 is a plan, of a modified construction Fig. 11 is a detail of the line-space-lever check, and Figs. 14 to 16 are views of further modifications of the line-space-lever check. Figs. 17 to 19 are plan views of modifications of the line-space check or lock.

In the several views like numerals of reference designate like parts.

As usual, the rectangular platen-frame consists of a front bar 1, rear bar 2, and end bars 3 I, in which is journaled the cylindrical platen. From the rear bar arms 5 extend rearwardly to form the hinge connection to the guide-rail 6. The letter-spacing rack '7 is connected to the arms 5. The platen-frame is also provided with a front roll 8.

T/m pres-W1'c-r'ol/m' 'j/ 'ttllip l t is the usual practice to put a strong pressure upon the main pressure-roller to bind the sheets of paper tightly together and prevent them from slipping one upon another when feeding around the plate. This, however, makes it ditlicult to introduce the sheets between the platen and the roller, owing to the resistance offered by the roller to being moved away from the platen by the entering edge of the paper. In order to overcome this difficulty, I have provided a light-tension receiving-roller and a heavy-tension binding-roller. The first roller readily yields when the leading edge of the paper is inserted in the crevice between the platen and the roller and grips the paper and conducts it to the second roller, which is adapted to bind the sheets of paper firmly togethcr to prevent creeping. The paper passes smoothly from the first roller to the second without attention from the operator and without danger of fouling.

A bail made, preferably, of a single strip of metal and consisting of a long shaft portion 9 and hanging arms It) 11 is pivotally mount ed in a pair of fixed arms 12 13, projecting from rear bar 2 of the platen-frame. The pivot-holes in the free ends of these arms may be provided with openings 1r to permit insertion of the shaft 9. To the lower end of each of the swinging bail-arms 1O 11 is swiveled a small vertical plate 15, and confined between and JOUIDitlOLl in the plates are an upper light-pressure receiving-roller 17 and a lower heavy-pressure binding-roller 18.

Various methods may be employed to provide each roller with its required pressure. I prefer to simply arrange each pivotal point 19 (whereat the plate 15 is swiveled to the bail) nearer the axis of the binding-roller or so that the bindingroller will receive more pressure than the receiving-roller from their common spring 16, as clearly indicated by the drawings.

It will be observed that the rollers 17 and 18 press or bear independently upon the platen or the paper thereon, so that whether one sheet or many sheets are introduced each of said rollers performs its allotted functions and each bears upon the paper with the desired pressure independently of the other. This important result is preferably secured by journaling each of said rollers in the end plates 15, which are swiveled or pivoted to the arms 11, which in turn are pivoted to the platen-frame. It is obvious that if both rollers 17 and 18 were journaled directly in the arms 11 they would not press independently upon the paper, but that the introduction of a thick pile of paper would force the roller 17 away from the platen, and thereby swing the arm 11 and cause the roller 18 to swing away from the platen a greater distance than the roller 17, so that the paper would be pressed only by the roller 17 and would be pressed by the roller 18 only after the final edge of the paper had passed said roller 17. Independent pressure of said rollers upon the platen may be produced in any suitable way; butI prefer the mechanism set forth.

The rollers may be of equal diameters; but I prefer to make the upper roller of large diameter, as shown, to more readily grip the paper and the lower roller of small diameter, so that it may be located near the printingpoint without occupying too much space. I have shown these rollers as arranged in rear of the platen; but the improvement is also applicable to front writers and top writers, wherein they may be otherwise disposed, it being essential only that the lightpressure roller be adapted to receive the paper and that the heavy-pressure roller be arranged at some suitable point preferably between the receiving-roller and the impression-point.

To facilitate the passage of the leading edge of the paper from the top roller to the lower without danger of fouling, I preferably cut a series of annular grooves in each roller, so that when assembled the uncut peripheral portions of one roller will set opposite or match the grooves in the other roller. This permits the rollers to be placed nearer each other (considered axially) without reducing the diameter of their working faces, thus economizing space and insuring the passage of the paper from the upper roller to the lower without danger of fouling.

I prefer to make each roller or series of .in'dependently rotary rollers are preferred,

that they be mounted upon a common shaft, as they may be otherwise suitably supported.

For adjustment of the pressure-roller spring 16 a series of holes 20, Fig. 11, may be provided in the arm 13 for receiving the bent end 21 of the spring.

Pueaswre-roller reZease.The left-hand arm 10 of the pressure-roller bail may be provided with an outwardly and downwardly extending finger-piece 22, which (after the platen is swung up in the usual manner) may be pressed in the direction for moving the pressure-rollers away from the platen, so that the paper will be released and more freely adjusted upon the platen.- site arm 11 may be provided with a duplicate finger-piece.

Paper-(mr0n.The paper-apron 24, Figs. 1, 5, and 6, is provided with the usual series of graduations, (or platenscale,) preferably by folding it at 29 and marking the graduations upon the under side 23. The bent-over portion may be omitted and the graduations If desired, the oppomarked upon the under surface of the apron 24. The apron is pivotally supported by a pair of arms 24*, rigidly attached thereto and pivoted at their rear ends to short fixed arms extending down from the rear bar 2 of the platen-frame. The apron is also provided with one central and two end guides 25, curving upwardly and rearwardly and preferably flexible. The central guide may be connected by adrawspring 26 to a hook 27, inserted in the rear bar 2 of the platen-frame, whereby the apron is yieldingly supported. The apron may also be provided with a series of short upwardly-extending fingers 28 to enter the grooves or spaces in the lower pressure-roller or series of rollers. The office of the guides 25 is to prevent the paper from fouling upon the apron, particularly when many sheets are inserted at once, as otherwise the sheets after forcing the pressure-rollers away "from the platen would meet and foul upon the upper edge of the apron. In passing a pile of sheets between the guides 25 and the platen the paper forces the guides away and causes the entire apron device to swing away from the platen, such motion being permitted by the pivotal sup- Lin ports of the arms 2%, so that the apron 24 before being reached by the paper is moved automatically away from the platen to permit the passage of the paper. The short lingers 28 are useful to further guard against any tendency of the leading edge of the paper fouling upon the upper edge of the apron, particularly when narrow or thin sheets are employed.

.l/D/v/N frnn{pup/'1 III/Yes. -The front bar 1 of the platen-frame is provided with a longitudinal groove 30 upon its upper side, and arranged to slide along the front bar are a pair of brackets, each provided with a pair of lingers 30 for engaging the groove. Each bracket carries a small spring-pressed roller adapted to bear upon the platen, a yielding papeuguide strip arranged ini'lependently of the roller and extending beneath the platen 1 and adapted to bear thereon, and an upwardlyextending guard. As shown at Figs. 1, at, and 5, each bracket, which may be formed of a single piece of sheet metal, consists of a pair of vertical side walls or plates 30, rigidly united by a short arm or cross-piece 31, from which curves upwardly and rearwardly a guard or deflector The lower extremity of each plate is prm'ided with a short horizontal slot 33, and arranged in these slots is the gudgeon 31 of the small roller 35, which is pressed against the platen by the two free ends of spring 36, which is arranged upon a cross-pin and bears upon the gudgeon ust inside of the plates. The yieldingstrip 37 may be riveted at 38 to the guard 32 and curve thence downwardly and beneath the platen and preferably overlap the platen-scale or paper-apron at 39 to facilitate the passage of the leading edge of the paper between the strip and the platen. The strip is provided with an opening it) opposite the small roller 35.

The manner in which the bracket is securely held upon the front bar of the platenframe will be understood upon reference to 36 and the yielding strip 37 is to force the lower end of the bracket away from the platen;

but owing to the engagement of the fingers 30" in the groove 30 this pressure simply holds the bracket [irmly against the rearside of the bar 1. The brackets will therefore remain securely at any point to which they may be slid along the bar.

One or more stop-screws *1 may be provided for limiting the sliding movement of the brackets, and a series of suitable sockets 42 may be provided for thescrews. I. prefer an adjustable sliding stop or clasp, Figs. 1 and 10, provided with a thumb-screw =13, by which it may be secured in any position independently of the sockets -12, if desired. or the sliding stop may be set at such a position that when it is necessary to use a narrow sheet or envelop the operator simply presses the guide along the front bar until it meets the stop. This device has been found in practice to etfect a great saving of time. Obviously the adjustment may be varied to suit any width of paper.

The usual central front paper-guard a1 may be attached to a short horizontal stem eta), provided with a threaded hole, so that it may be secured to the platen-frame by the shoulderscrew as, upon which turns the front roll.

L/nw-spuww /uv /-.---'A fixed horizontal arm &7 extends forwardly from the platen-frame. its front end is forked, and in the fork is pivoted a line-space lever comprising a depending handle *8 and an upwardly-extending arm 49. The hub of the lever is provided with a circular axial depression or pocket 50, in which is housed a short spiral returning-spring 51,

having projecting ends, one of which entersa hole 52 at the bottom of the depression and the other of which enters a slot 53, cut in the arm 17, Figs. 52, 7, and S. The hub is also provided with a threaded axial perforation of less diameter than the depression 50. The perforation receives a pivot-screw 51, which is provided with a nipple The head and the nipple serve as bearings upon which the lever swings. The lever may be provided with a stop, as 56, for limiting its return movement.

Linn-space ;m//:/.-lhe forward end of a horizontal gravity-pawl 57 is pivoted at to i the upper end of arm 19, and its rear end is Fig. 5. 'lhereactionary tendencyot'the spring provided with a tooth 59, standing normally disengaged from the line-space wheel 60, but in position to engage the teeth thereof when operated. The rear end of the pawl may be supported upon the arm 61. In operation the handle &8 is grasped by the lingers and pulled forwardly, while the thumb is simultaneously I placed at the upper end of 211111-19 and pressed Each bracket is pro- 1 i vided with a short horizontal PI'OJOCUOH beneath the bar 1, which prevents accidental upwarddisplacement. To remove theln'acket,

moved by sliding them out of the grooves, j

A cross-groove may be provided, if

Fig. 1. desired, as shown, near the right-hand end of the bar 1 to facilitate withdrawal of the bracket.

rearwardly. The lever is thus easily manipulated, and the tendency of the carriage to swing up about its hinge-rail (which would be likely Either a screw L1 to happen if the lower handle alone were main engagement with the pin 62 is a link 63, Figs. 2 and 9, which serves to limit or determine the movement of the line-space pawl and lover, and for this purpose the rear end of the 7 indicated by the arrow.

pawl is provided with a vertical longitudinal slot, Fig. 7, the link 63 being housed in the slot. The pawl is also provided on its upper side with a series of shallow transverse depressions 64, while the upper end of link 63 is provided with a cross-pin 65, adapted to engage any of these transverse depressions.

.The pin 65 may be provided with heads or buttons 66 to facilitate manipulation. The link 63 is engaged to the stationary pin 62 by means of a longitudinal slot 67. As shown at Fig. 2. this slot allows considerable movement of the link before being checked by the The operation of the device will be understood from the dotted lines at Fig. 2, the lines'pace wheel and platen having been rotated or stepped by the line-space lever and pawl until checked by the link 63 and pin 62; The depressions .64 may be made of such depth or the slot 67 of such length that the checking action will take place just as the spring-pressed roll 68 becomes seated between two of the linespace-wheel teeth, thus preventing any backlash or subsequent movement of the platen, which would not only require an undulystrong spring for wheel 68, but would also tend to interfere with the true feed of the paper around the platen and which, it will be understood, would occur if the wheel 68 should not be properly seated between the teeth when the parts are in the dotted-line position. At this moment the platen, owing to the interlocking construction of the spacing devices, is firmly held against accidental rotation from inertia or otherwise. It will be observed that when the dotted-line position is reached there could be no excessive rotation of the platen without forcing the pawl-tooth (prevented by the link from further upward motion) outwardly and forwardly, which of course is impossible, since at the moment the pawl is being thrust rearwardly by manual pressure, as Upon relief from manual pressure the line-space lever will resume normal position under the stress of spring 51, the gravity-pawl slipping back over the teeth of the line-space wheel and away there'- from.

At Fig. 2 the regulating-link 63 is shown in the proper position for effecting two linespaces. If triple space is required, the buttons 66 may be grasped by the fingers and the link lifted and moved forwardly and dropped, so that the pin 65 will rest in the forward depressions 64. The link will then permit the extra movement of the line-space lever and pawl, and when the platen has been rotated or stepped the triple-space distance the parts will interlock in the manner explained. If onlya single space, however, is required, the link may be lifted and dropped with the pin in the rear cross depression 64, whereupon the described interlocking action will take place as soon as the platen is moved through a single linespace. depressions 64 are so arranged that when in dotted-line position they stand at varying distances from the check-pin 62. It is immaterial whether elevations or projections be substituted for depressions.

If it be desired to guard against accidental displacement of the regulating locking-link 63, a yielding strip 69, Figs. 2 and 13, may be secured upon the upper edge of the pawl, so that it will lie over the depressions 64, and the strip may be longitudinally slotted at 70 to provide clearance for the top portion of the ink.

Page-end sig1mZ.To guard against danger'of writing upon or too closely to the bottom edge of the page, I have devised means for automatically notifying the operator when the foot of the page has been reached. In carrying out this portion of my improvements I prefer to employ means for automatically checking the line-space lever, which in practice proves to be a satisfactory signal to the operator that the end of the page is at hand; but it will be understood that in the practical embodiment of this portion of my conception I have made use of features of construction and combinations of devices which will prove valuable in connection with other notifying devices, such as a bell or a visible signal.

Referring to Figs. 1, 2, and 5, I have pivoted to the platen-frame at 71 a spring-operated horizontally-swinging elbow device comprising a forwardly extending horizontal check-arm 7 2,an arm 73, extending along the platen, and a forked supporting portion 74. The free rear ends of the fork 7 4 are provided with vertical perforations by which said fork is pivotally supported upon the vertically-arranged screw 71, which engages a threaded hole in the rear of bar 2 of the platen-frame. The lower portion of the fork engages the shouldered lower part or shank of the screw, while the upper portion of the fork engages the upwardly-projecting tip of the screw. A loose sleeve 71 may be placed over the reduced portion of the screw 71 between the upper portion of the fork and the bar 2 and may serve to support said fork. By means of the head of the screw 71 the spring 68, which carries the line-space check-roller 68, may be secured to the under side of the bar 2 or to projections formed thereon and extending down by the side of the lower portion of said fork 74. N ormally-. (2., before paper is inserted in the machinethe forward end of the arm 72 stands in line with a lateral projection 75, arranged upon the rear end of the line-space pawl, whereby the operation of the pawl and line-space lever is checked. The insertion of a sheet of paper in the machine in the usual manner serves to automatically vibrate the elbow device and unlock the linespace pawl and lever. To accomplish this result, theinner end of arm 73 is provided with To obtain this result, the several cross a suitable paper-controlled device, which may be in the form of a depending leaf 76. This leaf may be made thin and curved to conform to the curvature of the platen, so as to he between the paper and the platen without danger of wrinkling the former. The leaf may extend down to a point between the platen and the upper series of pressure-rollers l7 and lie in one of the described grooves or interstices between the individual rollers composing the system 17, Fig. 5, or, in other words. said leaf may lie alongside the edge of one of said individual rollers and preferably in the groove or interstice formed between two such rollers M that is to say, the construction is preferably such that there is a pressure-roller arranged at each side of the leaf. The paper is thus supported in a manner to positively control the leaf, and as far as this feature is concerned it is not essential that the rollers be concentric.

A portion of the lower edge of the papershelf opposite the leaf 76 may, if desired, be cut away, as indicated at Figs. 5 and 15, to afford clearance for the leaf. If this construction be used, the paper-shelf will be found to afford some support for the paperwhen-it is forcing the leaf toward the platen to liberate the line-spacing mechanism.

Upon a sheet of paper being presented to the platen in the usual manner, as indicated by the arrow at Fig. 5, the leaf yields readily to the paper and is wedged or pressed thereby toward the platen. In practice the leaf is found to offer no appreciable opposition to the introduction of the paper. The movement of the leaf toward the platen is automatic, requiring no attention upon the part of the operator, who simply inserts the paper in the usual manner. The described movement of the leaf vibrates the entire elbow device and liberates the line-space pawl, as shown by dotted lines at Fig. 1. It is not essential that the device operate automatically when liberating the linespace pawl. If a construction should be employed wherein it would. be necessary to operate the device manually to liberate the linespace mechanism. or allow insertion of the paper, it would suffice so long as the device is thereafter controlled by the paper and automatically released thereby to check the pawl.

A shield 77 may be employed, if desired,to guard against accidental or careless insertion of the paper between the platen and the leaf '76. The shield may be modified, or the construction may be such as to otherwise effect the same purpose, as will be hereinafter explained.

The elbow device will be held by-the paper in the described dotted-line position until the final edge of the paper passes down by the lower end of the leaf 76, whereupon the elbow device will be released and the returningspring Ts will vibrate the same back to normal position, so as to check any subsequent attempt made by the operator to manipulate the lever, thereby notifying him that there is little or no room left upon the page. The leaf preferably extends down beyond the point of contact of the pressure-roller 17, so that the checking or locking operation may not take place yn'ematurely. .It will be noted that said spring 78 normally presses the leaf 76 away from the platen.

It will be observed that the described devices act upon the line-spacing mechanism, but not upon the platen itself. For this reason it is possible to subsequently rotate the platen in linespace direction, either to write an additional line upon the page or to write the number of the page or to remove the paper from the machine. Such subsequent rotation may be effected by rotating the thumb-wheel 7 9 or by simply grasping the body of the platen in the usual manner. If it be desired to write an additional line, the line-space distance will be mechanically determined by the wheel 68 becoming seated between the teeth of the linespace wheel, so that there will be no danger of uneven line-spacing. I consider it a very desirable feature of the invention that the joint oporation of the line-spacing mechanism be automatically checked to notify the operator that the foot of the page has been reached without preventing subsequent rotation of the platen in line-space direction,as it is the general practice to rotate the platen after completing the page in order to deliver the paper from the machine. It is immaterial whether or not the line-space wheel itself is locked, so long as the construction is such that it is possible to further rotate the platen after the line-space lever has been rendered inoperative and independently of the locking device.

If the improvement should be so adapted as to sutliciently obstruct the operation of the line-space lever as to attract the attention of the operator without absolutely locking the lover or if other means be employed to attract his attention upon attempting to operate the lever, the general purpose of this portion of my invention will be served, although I prefer the construction and operation herein set forth. It is immaterial whether the platen be provided with an actuator other than a pawl and lever so long as the platen may be advanced in line-space direction for either writing an additional line or removing the paper from the machine after the actuator has been automatically locked or checked. It is obviously immaterial what sort of line-space lever mechanism is employed so long as it is 1 automatically rendered inoperative when the foot of the page is reached.

It will be observed that the object of locking the line-space lever is to prevent its usual step-by-step operation of the platen, and it is obviously immaterial whether this object is attained by looking or checking the movement of the lever or otherwise rendering it inoperative to rotate the platen. Any suitable means may be employed for preventing the operative engagement ofthe line-space lever with the line-space wheel or platen.

In the form shown at Figs. 12 and 13 an upwardly and forwardly extending fixed arm is secured to the platenframe and provided with a long tubular boss 81, extending inwardl y parallel with the platen axis. A rockshaft 82 extends through the boss. To the right-hand end of the shaft is secured a horizontal arm 83, extending to a point near the line-space pawl and provided at its forward end with a lateral projection 84, which normally (when there is no paper in the machine) stands in line with the rear end of the linespace pawl 57 to check or prevent the operation thereof. To the inner end of shaft 82 may be secured a short arm 85, to which may be adjustably secured by a thumb-screw the curved depending leaf 76. The object of the adjustment is to vary the moment at which the leaf 76 shall be released by the paper. This, however, is not an essential feature. A forwardly-extending shield 77 may be employed, if desired.

Upon insertion of a sheet of paper the leaf 76 will be swung toward the platen, causing the shaft to rock, and thereby lifting the forward end of the arm 83, as shown by dotted lines, thus liberating the line-space pawl and lever. hen the final edge of the paper passes down by the lower end ofthe leaf 76, thereby releasing it, the entire rocking device will by gravity resume its normal full-line position, locking the line-space lever.

The leaf 76 may be variously arranged with reference to the pressure-roller. For instance, the leaf may terminate above the usual long uncut pressure-roller. as at Fig. 15, or it may pass down by the end of the roller, as at Fig. 16, and in the latter case the roller may be made shorter than the line of. writing in order to permit the leaf to be arranged alongside the body of the platen, as at Fig. 17, or, if desired, the roller may be made of the usual length and the leaf 76 disposed near the end of the platen, the boss 81 and shaft 82 being correspondingly shortened, as at Fig. 18.

The forwardly-projecting shield portion 77 may, if desired, be omitted from the construction shown at Figs. 12 and 13, since the construction of the remaining portions of the device is such as to guard against inadvertent insertion of the paper between the leaf and the platen. The boss 81 lies over and in close proximity to the platen at a considerable distance above and forward of the point where the pressure-roller touches the platen, where the paper is inserted, and constitutes a satisfactory guard, and, if desired, the arm 80 may be extended farther forward, bringing the boss 81 to the top of the platen, as illustrated at Fig. 14:, to still better guard against the insertion of a sheet between the platen and the leaf.

In the form shown at Fig. 15 a gravitypawl 86, adapted to engage and lock the linespace wheel, is substituted for the arm 83. In this modification the line-space-wheel may be yieldingly connected to the platen, so as to permit further manual rotation thereof independently of thelocked line-space wheel. Any suitable yielding connection may be arranged between the line-spaee wheel and platen to permit the independent movement of the latter, and it is not essential that the line-space wheel be arranged concentrically with the cylindrical platen. 1n the form shown at Fig. 15 any suitable clutch may be arranged between the platen and line-space wheel. As illustrated, the platen-shaft is provided with a collar 87, to which is screwed a frictionwasher having three fingers 88, which press the line-space wheel forcibly against a small flange 89, (indicated by dotted lines,) with which the collar s provided. The hole in the line-space wheel is of large diameter to fit over the collar. If it be desired to rotate the platen to add a line or two at the foot of the page, a circular series of depressions corresponding in number to the teeth of the linespace wheel, (designated as may be made in the line-space wheel, and one of the fingers 88 may be provided with an inwardly-projecting pin to yieldingly engage any of the depressions. By this means the line-space distance may be mechanically determined after the line-space wheel is locked, the inwardlyprojecting pin being adapted to slip from one depression to another when the platen is foreibly rotated, and the depressions, of course, being a line-space distance apart. It is immaterial what connection is employed between the line-space wheel and the platen so long as the line-space lever is rendered inoperative while the platen is left free for further rotation. A portion of my invention, however, may be employed to lock both the line-space wheel and platen, as illustrated at Figs. 16 to 19, in which event the platen may be released for further rotation by reaching the finger back of the leaf 76 and pressing it forwardly, which will lift the pawl 86 from the line-space wheel.

Referring now to Fig. 19, it will be observed that the leaf 76 is not arranged opposite the body portion of the platen, by which is meant the type-impressed portion, but opposite the extreme end of the platen, which does not receive the type-impressions. I prefer, however, to arrange said leaf 76 opposite the typeimpressed body of the platen, as illustrated at Figs. 1 and 13, since there is no liability of premature operation of the signal, because the rearward pressure of the leaf 76 is borne by the body of the sheet and not by the extreme side edge thereof, which latter'would be liable to yield to the pressure, particularly in the case of limp paper. Again, it some times happens that the width of the paper only slightly exceeds the length of the printed line, so that the side paper-guides must be arranged as close as possible to the type-impressed portion of the platen, and in such a case the said arrangement of the leaf T6 alongside the body of the platen insures the operation of the signaling or locking mechanism, which would not be the case in the construction noted at Fig. 15), as the leaf 76 would not be reached by the side edge of the paper, and hence the mechanism would fail to operate. It will thus be seen that whether using wide or narrow sheets or stiff or limp paper the leaf To is always sure to be properly engaged and controlled by the sheet, owing to its arrangement alongside of the body of the platen.

Referring to Figs. 12, let, 15, and 16, it will be observed that the pivot or axis of vibration of the leaf T6,which is parallel with the platenaxis, is arranged at a point considerably higher than the point at which the leading edge of the paper contacts with the leaf 76, so that said leaf may swing freely when engaged by the paper, which would not be the case if the said pivot or axis were arranged at or near the point where the leaf is touched by the leading edge of the paper.

"henever the movement of the platen in line-space direction is referred to herein the advance movement only is meant.

So far as some portions of my invention are concerned the cylindrical platen may be regarded as being merely a paper-feed roller or as a paper-carrying device adapted to move the paper in line-space direction. Obviously the page-end-sigualing devices are applicable to machines having other forms of platen or type-impressing devices or other line-space Il1(')\'0lll0ili3$.

In utilizing the various portions of my invention, either in connection with one another or in association with other devices, it is not essential that the precise details of construction and arrangement illustrated be followed out. Numerous changes and modifications may be made without discarding the essence of the invention in any of its features or sacrilicing the advantages that may be reaped therefrom.

hat I claim as new, and desire to secure by Letters Patent, is the following:

I. In a type-writing machine, the combination with a cylindrical platen of a light-pressure receiving-roller, a heavy-pressure binding-roller, and means for pressing them independently against the platen and so that the removal of the pressure of one of said rollers from the platen does not at the same time remove the pressure of the other roller from the platen.

In a typewriting machine, the combination with a cylindrical platen of a light-pressure receiving-roller, a heavy-pressm-e binding-roller arranged between the receivingroller and the impression-point, and means for pressing them indepemlently against the platen and so that the removal of the pressure of one of said rollers from the platen does not at the same time remove the pressure of the other roller from the platen.

3. In a type-writing machine, the combination with a platen-frame and cylindrical platen of a light-pressure receiving-roller; a heavypressure bimling-roller arranged between the receiving-roller and the impression-point and pressing independently against the platen;and a common support for the rollers, pivotally mounted upon the platen-frame.

In a type-writing machine, the combination with a platen of a series of tandem pressure-rollers arranged in rear of the platen, a spring common to the rollers, and means arranged between the spring and the rollers to cause the latter to bear against the platen independently and with unlike pressures; said means comprising a lever-frame in which the rollers are mounted and pivoted supports for said frame.

In a type-writing machine, the coi'nbination with the platen-frame and platen of a pair of pivoted plates arranged in rear of the platen and supported upon the platen-frame and two tandem pressure-rollers journaled in the plates on opposite sides of their pivots and adapted to bear independently against the platen.

6. In a type-writingmachine, the combiuation with the platen of a pair of swinging arms, a plate swiveled to each arm, and two tandem pressure-rollersjournaled in the plates and adapted to bear against the platen.

T. In a type-writing machine, the combination with the platen of two tandem pressurerollers journaled in a pair of end plates, and means for applying pressure to the plates in a manner to cause the rollers to bear against the platen independently and with unlike pressures.

8. In a type-writing machine, the combination with the platen of two tandem pressure rollers journaled in a pair of plates; and a spring-pressed arm pivotally joined to each plate at a point nearer one roller than the other, so as to cause the rollers to b 2211 against the platen with unlike pressures.

In a type-writing machine, the combination of a platen, a series of interstitial pressure-rollers arranged along the platen, a second series of pressm'e-rollers arranged opposite the interstices of the first-mentioned series, a frame supporting said two series of pressure-rollers, and pivoted supports upon which said frame is pivoted.

10. In a type-writing machine, the combination of a platen, two tandem pressure-rollers each provided with an interstitial series of annular grooves andv arranged in juxtaposition so that the grooves of one roller match the uncut portions of the other roller, plates pivoted between their ends and upon which said rollers are mounted on opposite sides of said pivots and pivoted supports for said plates.

1 1. In a type-writing machine, the combination with the platen of a roller suitably mounted in plates pivoted to a swinging bail; a spring for pressing the roller against the platen; and afinger-piece connected to the bail for pressing the bail and roller away from the platen.

12. In a type-writing machine, the combination with the platen of two tandem rollers suitably mounted in plates pivoted to a swinging bail; means for pressing the rollers against the platen; and a finger-piece for pressing the bail and rollers away from the platen, whereby the paper may be freely adjusted upon the platen.

13. In a type-writingmachine, the combination with the platen -frame and cylindrical platen of a pair of arms pivoted to the platenframe; a paper-apron secured to the arms and provided with upwardly-extending end and intermediate guides; a spring for holding the apron against the platen; pressure-rollers arranged between the guides and suitably supported upon the platen-frame independently of the apron and guides, and means for pressing said rollers independently against the platen.

14. In a type-writing machine, the combination with the platen-frame and cylindrical platen of a pair of arms pivoted to the platenframe; a paper-apron secured to the arms and provided with upwardly-extending end and intermediate guides; a spring for holding the apron against the platen; a series of interstitial pressure rollers arranged between the guides; and a second series of like rollers arranged opposite the interstices of the firstmentioned series, and pressed against the platen independently of said first-mentioned series.

15. In a type-writing machine, the combination with the cylindrical platen of a bar parallel therewith and provided with a groove; a bracket provided with a finger (such as 30") adapted to slide in the groove, and provided also with a guard (such as 30 and a platenpressing spring (such as 36 or 37), the reaction whereof forces the bracket away from the platen and against the bar, so as to frictionally oppose movement of the bracket along the bar.

16. In a type-writing machine, the combination with the cylindrical platen of a bracket adapted for movement along the platen; a yielding paper-guide strip secured thereto and adapted to bear against the platen; a small roller provided with gudgeons adapted to be received by opposite slots in the walls of the bracket; and a spring arranged upon the bracket so that its free ends press upon the gudgeons to force the roller against the platen.

17. In a type-writing machine, the combination with the cylindrical platen of a slideway arranged parallel with and in front of the platen; a sheet-metal bracket formed in one piece and comprising a pair of side walls, a union, and an upwardly-extending deflector (such as 82) and also comprising means formed integrally with said bracket for engaging said slideway so as to prevent movement of said bracket except in a direction along said slideway; a yielding paper-guide strip secured to the bracket and curving rearwardly beneath the platen; a small roller provided with gudgeons adapted to be received by opposite slots in the walls of the bracket; and a spring arranged upon the bracket and adapted to press upon the gudgeons to force the roller against the platen.

18. In atypewriting machine, the combination with the platen-frame, the platen and the line-space wheel of a forwardly extending arm secured to the frame and forked at its front end; a vertically-arranged lever pivoted in the fork; a spring housed at said pivot; and a pawl pivoted to the lever and extending to the line-space wheel in position to operate it.

19. In a type-writing machine, the combination with a platen-frame, a platen, a line-space wheel, a handle pivoted to the platen-frame, a pawl pivoted to said handle, and means carried by the pawl for limiting its line-space movement and enabling the pawl to lock the platen and ratchet-wheel against excessive rotation.

20. In a type-writing machine, the combination of a platen-frame, a platen, a line-space wheel, a line-space lever, a pawl pivoted thereto and constructed to rotate the line-space wheel and platen, means carriedby said pawl to automatically lock the line-space wheel and platen against excessive rotation, and means for causing the pawl to return to normal position independently of the line-space wheel.

21. In a type-writing machine, the combination of a platen-frame, a platen, a line-space wheel, a line-space lever, a pawl pivoted thereto and carrying means for regulating the distance through which it may move to rotate the platen and for also locking the latter against excessive rotation.

22. In a type-writing machine, the combination with the platen-frame, platen and linespace wheel of a movable tooth constructed to rotate the line-space wheel and platen; an adjustable stop device connected to the platenframe and movable with said tooth and constructed to limit the line-spacing movement of the tooth and also to temporarily lock the tooth and line-space wheel; whereby excessive rotation of the wheel and platen is avoided.

23. Ina type-writing machine, the com bination with the platen-frame, platen and linespace wheel of a lever, a pawl connected thereto and constructed to actuate the line-space wheel and platen, and a link device connecting the pawl to the platen-frame and constructed to limit the movement of the pawl.

2%. In a type-writing machine, the combination with the platen-frame, platen and linespace wheel of a lever, a pawl connected thereto and constructed to actuate the line-space wheel, and an adjustable link device connecting the pawl to the platen-frame in a manner to limit the movement of the pawl.

25. In a type-writing machine, the combination with the platen-frame, platen and linespace wheel of a lever, a pawl connected thereto and constructed to actuate the line-space wheel, and a link device secured to the platent'rame and constructed to engage the pawl at difl'erent points to variably limit the movements of the pawl.

26. In a type-writing machine, the combination with the platen-frame, platen and linespace wheel of a lever, a pawl connected thereto and constructed to actuate the line-space wheel, and also provided with a series of depressions; and a link device secured to the platen-frame and constructed to engage any of said depressions.

27. In a type-writing machine, the combination with the platen-frame, platen and line space wheel of a lever; a pawl connected thereto and constructed to actuate the line-space wheel; a series of depressions; and a link provided with a pin-and-slot connection to the platen-frame and constructed to engage any of the depressions.

28. In a type-writingmachine, the combination with the platen-frame, platen and linespace wheel of a lever, a pawl connected thereto and constructed to actuate the line-space wheel, and also provided near its driving end with a central vertical slot, and provided also thereat with a series of transverse depressions; and a link housed in the slot and provided with a transverse pin for engaging any of the depressions, and also provided with a slot for engaging a stationary pin upon the platenframe.

29. In a type-writing machine, the combination with the platen-frame, platen and linespace wheel of a forwardly-extending arm secured to the frame; a vertically-arranged lever pivoted between its ends in the front end of the arm; a pawl secured to the upper end of the lever and extending to the line-space wheel; and a link device connecting the pawl to the platen-frame.

30. In a type-writingmachine, the combination with the platen of a chain of platen-rotating mechanism including a line-space wheel, a lever, and a pawl; and a paper-controlled device constructed to directly engage the said chain of mechanism in a manner to check the joint operation thereof.

31. In a type-writingmachine, the combination with the platen of a paper-controlled device arranged opposite and in juxtaposition to the type-impressed body of the platen, and operatively connected to suitable means for notifying the operator of the progress made by the paper in line-space direction.

32. In a type-writing machine, the combination with the platen of a chain of platen-rotating mechanism comprising a line-space wheel and an actuator therefor; and a papercontrolling device extending to said platenrotating mechanism and constructed normally to check the joint operation of said chain of mechanism; said device being also constructed to be automatically engaged and moved to an inoperative position by the leading edge of a sheet of paper as it is inserted into the machine.

In a type-writing machine, the combination with a cylindrical paper-carrier (such as a platen) of an actuator adapted to intermittently impart movement to the carrier, and means for automatically rendering the actuator inoperative without preventing subsequent independent movement of the carrier in linespace direction.

3%. In a type-writing machine, the combination with a cylindrical paper-carrier (such as a platen) of an actuator adapted to intermittently impart movement to the carrier; and means called into action through such movement of the carrier for rendering the actuator inoperative, without preventing subsequent independent movement of the carrier in linespace direction.

35. In a type-writing machine, the com bination with a cylindrical paper-carrier of an actuator adapted to intermittently impart progressive rotary movements to the paper-carrier through mechanically-determined linespace distances; and means for automatically rendering the actuator inoperative without preventing subsequent independent rotary movements of the paper-carrier through mechanicallydetermined line-space distances; whereby one or more additional lines may be written at the foot ot'the page without risk of uneven line-spacing.

36. In a type-writing machine, the combina tion with a cylindrical platen of a lever adapted to intermittently rotate the platen for linespacing, and means adapted to be called into action through the rotation of the platen for rendering the lever inoperative, without preventing subsequent independent rotation of the platen in the same direction.

37. In a type-writing machine, the combination with a cylindrical platen and line-space wheel connected thereto of a lever provided with a pawl for intermittently rotating the line-space wheel and platen; and means adapted to be called into action through the rotation of the platen for checking the pawl and lover without preventing subsequent independent rotation of the platen in the same direction.

38. In a type-writing machine, the combina- IIO tion with the cylindrical platen of a paper-controlled device (such as a leaf) arranged alongside the body of the platen; a paper-pressing device arranged upon each side of the leaf and in proximity thereto and pressing upon the platen, whereby a support is afforded to that portion of the paper that controls the leaf; and means operatively connected to the leaf for indicating when the end of the page is reached.

39. In a type-writing machine, the combination with the cylindrical platen of a paper-controlled device (such as a leaf) arranged alongside the body of the platen; a paper-pressing roller arranged upon each side of the leaf and in proximity thereto and pressing upon the platen, whereby a support is afforded to that portion of the paper that controls the leaf; and means operatively connected to the leaf for indicating when the end of the page is reached.

40. In atype-Writing machine, the combination with the cylindrical platen of a paper-controlled device (such as a leaf), curved to conform generally to the curvature of the platen, so that it may lie close to the platen and between the paper and the platen; and means operatively connected to the'leaf for indicating when the end of the page is reached.

ll. In a typewriting machine, the combination with the cylindrical platen of a paper-controlled device (such as a leaf) arranged alongside .the end of a pressure-roller, and curved to conform generally to the curvature of the platen, so that it may lie close to the platen and between the paper and the platen; and means operatively connected to the leaf for indicating when the end of the page is reached.

42. In atype-writing machine, the combination with the cylindrical platen of a paper-controlled device (such as a leaf) arranged alongside the end of a pressure-roller, extending to a point beyond the point of contact of the pressure-roller with the platen, and curved to conform generally to the curvature of the platen, so that it may lie close to the platen and between the paper and the platen; and means operatively connected to the leaf for indicating when the end of the page is reached.

43. Inatype-writing machine, the combination with the cylindrical platen ofa pressureroller; a paper-controlled device (such as a leaf) arranged alongside of the end of the roller, and operatively connected to means for indicating when the end of the page is reached; and asecond pressure-roller arranged between the first-mentioned roller and the printingpoint; whereby the paper may be advanced for an additional line of writingafter the signaling operation.

44. In a type-writing machine, the combination with the cylindrical platen of a series of interstitial pressure-rollers arranged along the platen; a second series of like rollers arranged opposite the interstices of the first-mentioned series; a paper-controlled device (such as a leaf) arranged at one of the interstices of the first-mentioned series; and means operatively connected to the leaf for indicating when the end of the page is reached.

45. In atype-writing machine, the combination with a platen-frame, cylindrical platen and chain of platen-rotating mechanism, including a lever, pawl and line-space wheel, of a paper-controlled device (such as a leaf) arranged alongside the body of the platen; a device adapted to check the joint operation of the chain of platen-rotating mechanism; and means supported upon the platen-frame and extending along the body of the platen between the platen-rotating mechanism and the paper-controlled device for operatively connecting the leaf to the checking device.

46. In a type-writing machine, the combination with the platen-frame and cylindrical platen of a vibratory paper-controlled device, such as a leaf, the axis of its vibration being parallel with the platen-a xis; and means (such as a shaft) supported upon the platen-frame and extending along the body of the platen, for operatively connecting the leaf to a suitable signal for indicating when the end of the page is reached.

&7. In a type-writing machine, the combination with the platen-frame, platen, line-space wheel, lever and pawl, of a paper-controlled leaf secured to a rock-shaft supported upon the platen-frame; and an arm carried by the shaft in position to engage the pawl to prevent it from actuating the line-space wheel.

48. In a type-writing machine, the combination with the platen-frame, platen, line-space wheel, lever and pawl, of an arm secured to the platen-frame and bearing a tubular boss; a rock-shaft mounted in the boss; a leaf secured to the rock-shaft and adapted to be controlled by the paper; and an arm carried by the rock-shaft and adapted to engage the pawl to prevent it from actuating the line-space wheel.

49. In atype-writing machine, the combination with the platen-frame and cylindrical platen of a paper-controlled device (such as a leaf) suitably supported upon the platen-frame and adapted to notify the operator when the end of a page is reached; said leaf being adapted to lie between the paper and the platen; and the whole being suitably constructed to guard against insertion of the paper between the leaf and the platen.

50. In atype-writing machine, the combination with the platen-frame and cylindrical platen of a paper-controlled device (such as a leaf) suitably supported upon the platen-frame and adapted to indicate when the end of a page is reached; the leaf being adapted to lie between the paper and the platen, and being arranged in proximity to the platen in a manner to guard against insertion of the paper between the leaf and the platen.

51. In a type-writing machine, the combination with the platen-frame and cylindricalplaten of a paper-controlled device (such as a leaf) adapted to indicate when the end of a page is reached; the leaf being provided with a suitable support, and said support being arranged in proximity to the platen in a manner to guard against insertion of the paper between the leaf and the platen.

52. In a type-writing machine, the combination with the platen-frame and cylindrical platen of a paper-controlled device (such as a leaf) suitably supported upon the platen-frame and adapted to indicate when the end of the page is reached; the leaf being adapted to lie between the paper and the platen; and a shield adapted to guard against insertion of the paper between the leaf and the platen.

53. In a type-writing machine, the combination with the platen-frame, cylindrical platen and chain of platen-actuating mechanism, including a line-space wheel, lever and pawl, of a paper-controlled device (such as a leaf) supported upon the platen-frame in position to lie between the paper and the platen, and suitably constructed and arranged to guard against insertion of the paper between the leaf and the platen, and adapted to check the jointoperation of the chain of platen-actuating mechanism.

54:. In a type-writing machine, the combination with the platen-frame and cylindrical platen of a vibratory paper-controlled device (such as a leaf), adapted to indicate when the end of the page is reached, and arranged so as to lie between the paper and the platen; the axis of its vibration being at a point in proximity to the periphery of the platen and parallel with the platen-axis.

55. In a type-writing machine, the combination with a platen, pivoted arms or supports, plates or carriers pivoted to said arms or supports, pressure-rollers journaled in said plates or supports on opposite sides of the latters pivots, and a spring for pressing said rollers against the platen.

56. In a type-writing machine, the combination with a platen, of paper-feeding devices mounted on plates or carriers each of which is pivoted between its ends to a pivoted springpressed arm or support.

57. In a type-writing machine, the combination with a platen, of a spring-pressed paper-feeding device pivoted between its ends and so as to press against the platen or the paper thereon on opposite sides of its pivot,

and a pivoted arm or support for said paperfeeding device.

58. In a type-writing machine, the combination with a platen, of a plurality of pivoted arms or supports, and a plurality of springpressed paper-feeding devices pivoted to said arms or supports between their ends and pressing on the platen or the paper thereon on opposite sides of their pivots.

59. In a type-writing machine, the combination with a platen, of a plurality of plates or carriers provided at their opposite ends with pressure-rollers, and a plurality of pivoted arms or supports pivotally connected to said plates or carriers between their ends.

60. In a type-writing machine, the combination with a platen, of a spring-pressed paper-feeding device pivoted between its ends and so as to press against the platen or the paper thereon on opposite sides of its pivot, a pivoted arm or support for said paper-feeding device, and hand-operated means for retracting said spring-pressed paper-feeding device.

61. In a type-writing machine, the combination with a platen, of a plurality of pivoted arms or supports, a plurality of spring-pressed paper-feeding devices pivoted to said arms or supports between their ends and pressing on the platen or the paper thereon on opposite sides of their pivots, and hand-operated means for simultaneously retracting said plurality of spring-pressed paper-feeding devices.

62. In a type-writing machine, the combination with a platen, of a plurality of springpressed parallel feed-rolls, means for supporting the same, a plurality of pivoted arms or supports pivotally connected to said roll-supporting means between the axes of the parallel teed-rolls, and hand-operated means for simultaneously retractingsaid plurality of feedrolls.

63. In a type-writing machine, the combination with a platen, of a plurality of parallel feed-rollers, carriers for supporting said feedrollers, pivoted arms to which said carriers are pivoted, a bar extending across from one pivoted arm to the other, and a hand device acting through said bar for vibrating said arms and simultaneously retracting said feed-rollers.

Signed at Elizabeth, in the county of Union and State of New Jersey, this 2d day of July,

BURNHAM U. STICKNEY. \Vitnesses:

EDWARD BRYCE, JOSEPH F. J AQUI'III. 

